High pitched whistling noise

[calvin_147]

Okay so my car has started making this whistling noise when I drive, but it only happens after driving for a while. But the noise stops after I accelerate or after I press the brake pedal hard a few times, just wondering if you guys had any idea what's going on, any help would be appreciated :)



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[calvin_147]

Btw I drive a 2006 audi a4 turbo s-line Quattro


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[JLBmatic]

sounds vacuum-related.... ie air inlet to engine air leaks somewhere... others may be able to comment more but i would check for air leaks between the air filter & inlet manifold...start with the basics ie check for obvious splits in pipes or loose clips etc,,

[Doctle Odd]

Check that Roger Whittaker isn't hiding in the boot

[calvin_147]

sounds vacuum-related.... ie air inlet to engine air leaks somewhere... others may be able to comment more but i would check for air leaks between the air filter & inlet manifold...start with the basics ie check for obvious splits in pipes or loose clips etc,,

I'm going to get the car checked tomorrow, so will let you guys know how it goes


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[calvin_147]

So got it checked, turns out it was the pcv going out, real simple and cheap fix


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